Iron Deficiency in Cyanobacteria Causes Monomerization of Photosystem I Trimers and Reduces the Capacity for State Transitions and the Effective Absorption Cross Section of Photosystem I in Vivo
Summary. Iron deficiency in cyanobacteria triggers production of CP43' protein, which forms rings around photosystem I. Contrary to laboratory predictions, this does not increase PSI's light absorption capacity in living cells. Instead, iron stress causes PSI trimers to break apart into monomers, reduces the cell's ability to balance energy between photosystems, and lowers levels of key electron transport proteins. CP43' functions primarily as a protective mechanism against photodamage rather than enhancing light capture.
Cite this article
Ivanov, A. G., Król, M., Sveshnikov, D., Selstam, E., Sandström, S., Koochek, M., Park, Y., Vasil’ev, S., Bruce, D., Öquist, G., & Hüner, N. P. A.. (2006). Iron Deficiency in Cyanobacteria Causes Monomerization of Photosystem I Trimers and Reduces the Capacity for State Transitions and the Effective Absorption Cross Section of Photosystem I in Vivo. PLANT PHYSIOLOGY. https://doi.org/10.1104/pp.106.082339
Ivanov, Alexander G., et al. “Iron Deficiency in Cyanobacteria Causes Monomerization of Photosystem I Trimers and Reduces the Capacity for State Transitions and the Effective Absorption Cross Section of Photosystem I in Vivo.” PLANT PHYSIOLOGY, 2006. https://doi.org/10.1104/pp.106.082339.
Ivanov, Alexander G., Marianna Król, Dmitry Sveshnikov, Eva Selstam, Stefan Sandström, M Koochek, Youn‐Il Park, et al.. 2006. “Iron Deficiency in Cyanobacteria Causes Monomerization of Photosystem I Trimers and Reduces the Capacity for State Transitions and the Effective Absorption Cross Section of Photosystem I in Vivo.” PLANT PHYSIOLOGY. https://doi.org/10.1104/pp.106.082339.
@article{ivanov-2006-iron-deficiency-cyanobacteria-causes-monomerization,
title = {Iron Deficiency in Cyanobacteria Causes Monomerization of Photosystem I Trimers and Reduces the Capacity for State Transitions and the Effective Absorption Cross Section of Photosystem I in Vivo},
author = {Alexander G. Ivanov and Marianna Król and Dmitry Sveshnikov and Eva Selstam and Stefan Sandström and M Koochek and Youn‐Il Park and Sergej Vasil’ev and Doug Bruce and Gunnar Öquist and Norman P. A. Hüner},
journal = {PLANT PHYSIOLOGY},
year = {2006},
doi = {10.1104/pp.106.082339},
url = {https://doi.org/10.1104/pp.106.082339}
}
TY - JOUR TI - Iron Deficiency in Cyanobacteria Causes Monomerization of Photosystem I Trimers and Reduces the Capacity for State Transitions and the Effective Absorption Cross Section of Photosystem I in Vivo AU - Alexander G. Ivanov AU - Marianna Król AU - Dmitry Sveshnikov AU - Eva Selstam AU - Stefan Sandström AU - M Koochek AU - Youn‐Il Park AU - Sergej Vasil’ev AU - Doug Bruce AU - Gunnar Öquist AU - Norman P. A. Hüner JO - PLANT PHYSIOLOGY PY - 2006 DO - 10.1104/pp.106.082339 UR - https://doi.org/10.1104/pp.106.082339 ER -
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- 10.1104/pp.106.082339
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- 2026-04-28